Mounting of gun barrel in its stock



Jan. l0, 1961 s.1.vw|| |AMs 2,967,368 MOUNTING 0F GUN BARREL IN ITSSTOCK Filed July s1, 195s United The present invention relates to riflesand aims to provide certain improvements therein. More particularly itrelates to an improved manner of mounting the barrel of a rie onto itsstock.

In the conventional army rifle, e.g., the Springfield or Mauser models,the rie barrel is locked onto the forearm of the stock by clamping ringsor equivalent means, an arrangement which localizes the recoil forcesupon firing 1out does not steady the whip of the barrel or suppressvibrations thereof relative to the stock and thus impairs true bulletflight.

Among the objects of the present invention are to provide a rifle withwhich true bullet iiight will be attainable by (1) spreading the recoilforces upon firing between the barrel and the stock over a far greaterarea than has been done heretofore; (2) by cushioning the impact of suchforces without stress and (3) by damping the vibrations set up upon saidrecoil and steadying the barrel from i The foregoing and other objectsof the invention, not specifically enumerated, are accomplished bybonding adbesively the barrel to the stock preferably through aresilient bedding material between the barrel and the stock, behind -andforward of the receiver recoil lug, the bedding material being bondedadhesively to both the barrel and the stock throughout their areas ofengagement. The invention will be better understood from the detaileddescription which follows when considered in connection with theaccompanying drawing showing a preferred embodiment and wherein:

Fig. 1 is a partial side elevation of a rie with parts broken away toillustrate the present invention.

Fig. 2 is a transverse section taken along the plane of line 2-2 of Fig.1.

Fig. 3 is a section taken along the plane at line 3-3 of Fig. 2.

Fig. 4 is a transverse section taken along the plane of line 4-4 of Fig.1.

Referring to the drawing the invention is shown as applied to a Mauserrifle, from which the telescopic gun sight and other parts not pertinentto the invention have been omitted and consists essentially of a gunstock supporting a barrel 11 with its receiver 12 and action 13 which iscontrolled by a trigger 14, guided in a trigger guide 15. The receiver12 is formed with a conventional recoil lug 16 formed with an internallyscrew threaded stud 17. The foregoing parts are conventional and per seform no part of the invention.

According to the present invention the stock 10 rear- W-ardly of therecoil lug is carefully inletted as shown at 1-8 to receive the actionintimately. Forwardly of the recoil lug 16 the forearm 10a of the stockis inletted as shown at 19 to provide real clearance between saidforearm and the barrel 11. The flat surface provided by the inletting 18between points a and b is for accommodating the sliding movement of theaction while the clearance provided between points b and c is foraccommodating a bedding material 2l). Clearance space is also providedaround the recoil lug 16 and its stud 17 within which space the beddingmaterial is also disposed.

As bedding material there may be used a suitable rubber compound such asbutyl rubber to which an activating agent has been added or otherresilient compounds such as epoxy resins and fibre glass. Preferably,butyl rubber compound is employed as the bedding material and ratesPatent 0 2,967,368 Patented Jan. 10, 1961 the barrel may be bondedthereto by any of the well known rubber adhesives.

After providing the inletting 19 forwardly of the recoil lug and aroundsaid lug, said space is filled with a viscous bedding compound to whichan actuator has been added, the trigger guide 15 is then secured inplace and the barrel is bedded in the compound and serves with theinletted stock as the mold for the bedding material. After the beddingmaterial has set or hardened, the barrel and assembly are removed fromthe stock leaving the bedding material in place. This is then carefullyexamined, cleaned, and accepted or repaired if bubbles are present. Thebarrel is likewise cleaned. The barrel is then bonded with rubberadhesive 21 to the bedding material to firmly secure the barrel andstock together.

By bonding the barrel to the stock, the action is left essentially freeto move backward in a straight line on recoil and preferably theretaining bolts 22 and 23 for securing the trigger guard are onlytightened enough to hold it and magazine assembly in place. In thisconnection it will be noted that clearances 24 and 25 are providedbetween the trigger guard and the stock and that the bolt 23 passesupwardly through a headed bushing 26 and engages the screw threaded stud17.

From the foregoing detailed description it will be appreciated that thebarrel is directly and intimately secured to the opposed contiguousareas of the stock and both rearwardly and forwardly of the recoil lugand around the stud 17. The bedding material thus absorbs the recoil inshear and tension over the length of the barrel, deadens the vibrationsand whip of the barrel, steadies the barrel from jump and therebyinsures true bullet flight. Such motion as occurs during tiring isimparted to the action which can move backward in a straight line andreturn without major resistance.

Although I have shown and described a preferred embodiment of theinvention, it is to be understood that changes in details ofconstruction and character and disposition ofthe bedding material may bevaried within the range of mechanical and engineering skill withoutdeparting from the invention as hereinafter claimed.

What I claim is:

l. A rie comprising a barrel, a receiver having a recoil lug, a stocksupporting the receiver and the` barrel at least in part, and a mass ofresilient bedding material between, conforming to and bonded adhesivelythroughout the length of the contiguous opposed portions of the barreland the stock to said respective parts, and to the contiguous opposedportions of the receiver and its recoil lug and the stock.

2. A rifle according to claim 1 wherein the bedding material is arubber-like compound.

3. A rifle according to claim 1 wherein the bedding material is an epoxyresin.

4. A riiie according to claim 1 wherein the bedding materia] is mouldedlibre glass.

5. The method of mounting a barrel on its stock comprising inletting theforearm of the stock, moulding a viscous bedding material in theinletted portion using the barrel as a. part of the mould and aftersetting of the bedding material, bonding adhesively together thecomplemental portions of the bedding material, the barrel and the stock.

References Cited in the tile of this patent UNITED STATES PATENTS2,249,899 Hogg July 22, 1941 2,339,331 Grigg Jan. 18, 1944 2,404,904Collins July 30, 1946 FOREIGN PATENTS Y 639,815 Germany Dec. 14, 1935

